ALTA Wireless AC Current Meter – 20 Amp – AA Battery Powered, 900MHZ

Monnit wireless AC Current Meters measure the RMS current of an alternating current (AC) system using a current transformer (CT) that wraps around the “hot” wire of a two wire (hot, common, ground(optional)) power system. The sensor reports Minimum RMS current, maximum RMS current, average RMS current, and amp hours to the iMonnit system. The iMonnit system is capable of generating watt hour or kilowatt hour readings as well.

Monnit MNS2-9-W2-CM-020 Features

1,200+ foot range

12+ year battery life

80+ wireless sensors

Bank-level AES security

Up in 15 easy setup

Global ready (900, 920, 868 & 433 MHz)

AC Current Meter Specifications

Absolute Max CT Current: 50 Amps RMS (Arms)

Maximum Accurate CT Current: 20 A rms

Frequency Measurement Range: 50 – 100 Hz

Offset Limits: -1.27 to + 1.27 Arms (default set to +.1 Arms)

Measurement Resolution: ~.01 Arms

Lead Wire Length: 3 feet

Accuracy: +/- (2% +.07 A rms) **

Calibrated Accuracy with Appropriate Offset: +/- (1% + .035 A rms)

Variation Specifications

Security: Encrypt-RF® (256-bit key exchange and AES-128 CTR)

Weight: 4.9 oz. (139 g.) – with CT

ALTA AA Specifications

Battery Type: 2 Replaceable AA 1.5 V Batteries

Dimension: 4.375 in x 2.470 in x 1.12 in

Supply Voltage: 2.0 – 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)

Battery Life: At 1 hour heartbeat setting, AA batteries will last up to 10 years.**

Max Operating Temperature Using AA Alkaline: -18°C to 55°C (0°F to 130°F)

Max Operating Temperature Using AA Lithium: -40°C to 60°C (-40°F to 140°F)

Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F)

Enclosure Material: ABS

ALTA 900 MHz Specifications

Operating Frequency: 900 MHz Operating Frequency

Certifications: Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)Complies with Industry Canada standards. (IC: 9794A-G2SC1)

Device Range: Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*

Security: Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)